A800IXXU2AOJ6 Android 5.1.1 Lollipop official firmware for Samsung Galaxy A8 SM-A800I is out and the users can now manually download the firmware zip file from here at
NasirTech. Samsung time to time releasing software update for all their Android
Smartphone and tablet devices and it is always recommended to update the latest
available firmware for your device as with every new firmware version Samsung introduces fixes
for bugs (if any), improvement in overall OS performance and sometime introduces
new features. Continue reading this page to find A800IXXU2AOJ6 download
link along with flashing instructions and rooting guide (if available).

(Firmware for rest of the countries and carrier will be added here when available)

[Please don't ask for any torrent download link for the above firmware. However, if the above link doesn't work, you can mention in comment below, we'll try to provide you with other download mirror (if available)]

A800IXXU2AOJ6 Installation Methods:

There are several ways by which you can update the XXU2AOJ6 firmware on your Galaxy A8 A800I such as- through Samsung Kies utility (from your PC), Via OTA (Over the Air, directly from your device using WiFi) and Odin method (manually download firmware and flash through Odin). Below you'll find all the three methods.

How to Update Official Firmware on Galaxy A8 SM-A800I via OTA (Over the Air):

Go toSettings-About, and tap on the Update Option from there (If its show“The latest update have already been installed”message, then your device haven’t receive any OTA yet, check back later or try installing through Kies.)

Tap OK to start the download and installation process

Once done, your device will reboot automatically

How to Update Official Firmware on Galaxy A8 SM-A800I through Samsung Kies Utility:

At the Samsung Kies home screen, you’ll seeNew Firmware Upgrade is availablenotification (If it show-“This is the last firmware”, then your device haven’t received the latest firmware on Kies, check back later or try flashing manually through Odin)

Click on the Firmware Upgrade button to start the update process

Follow onscreen instructions

Once done, your device will be reboot automatically

After reboot, you can disconnect your device from PC

How to Update A800IXXU2AOJ6 Firmware on Galaxy A8 A800I through Odin:

Kies and OTA are the official way to update firmware but most of us prefer manual way
to update official firmware. So, below you’ll find step by step manual
guide to update the XXU2AOJ6 5.1.1 Lollipop firmware on your Galaxy A8 A800I
through Odin software on your PC or Laptop.

Warning!

"The firmware is released only for the Samsung Galaxy A8 SM-A800I model, so don’t try this in any other android device. Check your device model number from Settings-About Phone. Also the tutorial is based on Windows PC. NasirTech is not responsible if anything wrong happens to your device after following this guide, try this at your own risk".

Points to be noted:

1) Check battery percentage, your device should have at least 60% battery
power

2) Turn on USB Debugging mode, go to Settings-General-Developer
Options (As the Developer options are hidden by default on all Android
device running on Android 4.2 or up, So go to Settings-General-About on
your Galaxy A8 and tap Build Number for 7 times to visible the
Developer options.) See the image below.

3) Switch off and boot Galaxy A8 A800I into Download Mode by
pressing and holding the Volume Down+Home+Power buttons (long press until the boot
screen appear), now press Volume Up key to proceed to Download Mode.

4) Extract the downloaded Odin3.09 zip file and run the Odin3 v3.09.exe file as
an administrator (Right click on the .exe file and click on Run as
administrator)

5) Now connect your Galaxy A8 A800I to your computer via USB cable

6) In Odin3 screen, you should see a COM Port number like “0:[COM7]” at ID:COM
section and “Added!” text at the message box. This means your device has been
detected by Odin3.

7) Make sure that, only the “Auto Reboot” and “F. Reset Time” options are checked in Odin.

10) Now, click on the Start button to begin the installation process, wait few
moments.

11) Once completed, you would see “PASS!” message in ID:COM port having green
background

12) Your device should automatically reboot after completion

13) You can now disconnect your device from computer

14) Finish

Hope you successfully completed the update process. If you followed everything as mentioned in the above tutorial, then your device should now running on Android 5.1.1 Lollipop build version number XXU2AOJ6. You can verify the firmware update details from Settings-About Phone.

Related:

Stuck at boot animation screen? Fix Bootloop on Galaxy A8 SM-A800I

If anything goes wrong, your device may stuck at booting animation. If your Galaxy A8 SM-A800I stuck at boot animation screen for more than 10 minutes, then follow these instructions:

Go to Recovery Mode by pressing and holding the Volume Up+Home+Power buttons together.

Now, perform Wipe Data/Factory Reset and Wipe Cache Partition task before selecting the reboot system now option. In Recovery Mode use the Volume keys to navigate between options and Power key to select any option.

Root A800IXXU2AOJ6 5.1.1 Lollipop Firmware:

We have arrange a details step by step guide to root
A800IXXU2AOJ6 5.1.1 Lollipop firmware running on Samsung SM-A800I. Open the below link for the rooting instructions.

How to Root A800IXXU2AOJ6 Android 5.1.1 Lollipop Firmware

If you are looking for anything else related to the above firmware, then mention in comment below.